Incinerator.



F. L., L. A. R. & A. S. DE CARIE.

INGINERATOE.

APPLICATION FILED AUG 23, 1909.

Patented Jan. 26, 1915.

3 SHEETSSHEET 1.

W/T/ ESSES Mai?- F. L L. A. R. & A. S. DEGARIE INGINERATOR.

APPLICATION FILED AUG.23,1909.

Patented Jan. 26, 1915.

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APPLICATION FILED AUG. 23, 1909. 1,125,976. Patented Jan.26,1915.

3 SHEETSSHBET 3.

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-cl1amher through way. Any desired number of these hoppers UNITED s'ra rns curios FELIX LOUIS DECARI E, LGUIS A. It. DECARIE, AND, ALEXANDER S. IDECARIE, 0F

MINNEAPOLIS,

mmisso're.

INCINEEATQR.

Specification of Letters Patent.

Patented Jinn. 26, iilfioa To all-whom it may concern:

Be-it known that we, FELIX L. ll ncenin, Louis A. R. DECARIE, and ALunAxnnn S. Dncnnrn, all of Minneapolis, llenncpin county, Minnesota, have invented certain new and useful Improvements in lneinerators, of which the Following is a speeiiieation.

The object of our inventionis to provide an incinerator having a large capacity and capable of extremely economical operation.

A further object is to provide means for dividing the mass of material to he COU- sumed so that the flames can penetrate and Work through the material in the cmnhustion chamber morerapidly and perfectly consume the same.

A further object is to provide an over head grate arranged Within the furnace and above the main grate, on which large objects, such as a carcass of a dead animal can he placed and held ri'hile being consumed hy the fian'ies from the tire on the main grate.

Other objects of the invention will appear from the following detailed description,

taken in Connection with the accompanying drawings, of whieh-.

Figure 1' is a longitudinal vertical section of an incinerator emhodying our invention,

Fig. 2 is a transverse vertical section of the same. the section being taken on the line '2-2 of Fig. 1, Fig. 3 is a front elevation, sliowing a modified arrangement of the supplementary or auxiliary grates, Fig. 4 is a detailed section, showing a modified arrange ment of the grate, Fig. 5 is a sectional detail view of the modification illustrated in Fig. 3, taken on the line 5-5 of said figure.

In the drawing, 2 represents the side Walls of the incinerator, preiierahly formed oi steel, and 3 and 4 the front and rear Walls respectively. lnclosed by these Walls is a combustion,chamber 5 having a grate 6 arranged in its lower part. The grate 6 may he of any ordinary or suitable construction and it is adapted to support the fuel, such as coal or wood, that may he used for starting the combustion in' the incinerator.

7 represents ahopper leading to the com bustion chamber, preferably from a roadway 8, in which a cover 9 is set for closingthe open, upper end of the hopper. The

material is discharged into the combustion this hopper in the usual upon the hang may be employed and we may provide the hopper with a slide or cut-off 7, which is ada omi to he operated by a steam cylinder if", having a suitable piston arranged to reciprocate tl'ierein, said piston hc'inc connect ed by a suitahle piston rod with tile slide 'Z (see Fig. By means of this slide. We are able to control the delivery of i into the combustion cha'ziiher, allowing it to remain in the hopper for anv length of time, and finally disciarging it therefrom a}; grate by opening the slide T ii'hero metcriai is damned dircctli upon the lower grate oi the combustion cliamher it frequently will pack down in such a to ss, that it is diii'icult tor the lire to penetrate and reach all the material to he consumed and a longer time is required for comhus tion. 'io obviate this objection, we provide what we term suspended or Financing grate, consisting oi. pipes 10 supported in the upper part of the combustion chamber and extending downwardly therein and having inwardly curved ends 11, which are connected with horizontal pipes These pipes are spaced apart and cooperate with the inwardly curved portions ii of the pipes 19 to sup ilort the ateriai in the coniliust on cnainher an 'uspend it in such a way over the fire h with that combustion will; be hastened. and any not material will h'e'thoroughly dried by being exposed to the hot gases and flames from the material on the lower grate. he lower portions of the hanging grate sections are inwardly inclined, shown in Fig. 2, and direct the n'iaterial deposited thereon toward. the center of the combustion ehaml'ier, Where a s ace is provided hetn'een the pipes 12 to low thcilischarge oi the material between them onto the lower grate. Between the depending sections oi" this hanging grate and the walls of the combustion chamber, a fine is formed which allows the products of comlmstion to circulate around the hanging grate and tl'ierehy facilitate the drying of the material on. the grate. he inwardly inclined arrangement oi? the grate sections will cause the material to work itself toward the cen ter and the discharge opening, and the Wet material on the hanging grate will act as a. hailie and retard the passage otthe products of combustion to the outer line. The Walls of the incinerator, as shown, are double, hay-- the material ing inner and outer casings with chambers 13 formed between them. Through these chambers water circulates around the combustion chamber. A part of the pipes are preferably connected to the cl'iambcrs 13 i and a part of them are preferably connected to a steam generating chamber 15 arranged above the combustion chamber and containing a supply of water. The chamber 15' incloses the hopper 7 and extends horizontally over the combustion chamber. At the rear of the combustion chamber and -at the upper part thereof, we prefer to arrange what we term an over head grate preferably formedof-a series of pipes 15 connecting the steam generating chamber -15 chamber, upon the grate. and-rest upon the material therein, there is a tendency to pack the material to be consumed, particularly ifit is wet. and seriously .delay combustion. All this difficulty is obviatedby providingthi's over head grate in the upper part of the combustion chamber, on which the carcasses of dead animals may be droppeda'nd where they may be held with outiinterfering with the fire on the main grate. until thoroughly consumed.

0 Below the lower grate 6 is an evaporat ing pan 17, oneach side of which headers 18 are horizontally-arranged, each having a longitudinal partition 19 and chambers 20 and 21 therein, connected respectively with pipes 22 and 23, which are concentrically arranged. projecting horizontally from opposite sides of the incinerator toward the middle portion;'thereof in said evaporating pan 17'. The headers 18 are connected by .pipes 24 with the steam generating chamber 15, so that a circulation of steam will be established through the headers and through the pipesQQ and 23 and in the pipes 25,.

which last'named pipes may be utilized to conduct the steam away I power purposes. The liquid, dripping from the mass of material upon the'grates above,

will be evaporated in the can 17 by the heat from the headers and pipes and at the same time. the lower portion of the massabove will be dried and rendered more comb-usti le.

The water circulates freely through the.

for heating or water chambers around the combustion chamber. Doors 26 are provided at intervals, through which access may be had to the combustion chamber, for the purpose of stirring or examining the burning material.

Above the combustion chamber and preferably directly over the over head grate'15" we providean opening 28 leading to the flue and the gas consuming chamber 29.

.The arrangement and construction of the flue and gas consuming chamber will be hereinafter described.

It sometimes happens that material brought to the incinerator for consum tion,

is very wet, and in this case, it is desira is to drain out as much of the water as possible before putting the material on to the hangmg grate. For this purpose we have shown and prefer to use one or more side hoppers 30. These hoppers are preferably provided with doors 31, arranged in the road way 8 on a level with the door 9 of the principal hopper. The hoppers '30 are located preferchamber, to which each hopper is'connected by a side opening. which connects the outer .side of the combustion chamber and the inner side of the hopper. A sliding door 32 is preferably arranged for closing this opening. The bottom and the lower portions of the sidewall of the hopper-ZO are preferably perforated and they are surrounded by an outer casing 33, to which is connected a drip pipe 34 that extends downward and has its open lower end above the evaporating ably one at each sideof the combustion pan 17. A door 35 is provided in the outer wall of each hopper. When wet material is brought to the incinerator; the door 32 may be. closed'and this material may be dumped into the hopper 30 andallowed to stand there for any'length of time. It can be stirred up by inserting a fork or other tool through the top door or through the door The water that drains off from this material will pass down through the pipe 3-4.- and fall into the evaporating pan 17. When this material is'suflicientlv dry, the door 32 is opened,the door 35 is also opened and the material is pusfiied out of the hopper 30 on to the hanging g ate. The pipes 10 of the hanging grate opposite the opening in the side hopper, are connected to the'water chamber and below the lower edge'of said opening, so that the material, as it is pushed out of the hopper, passes over the tops of these pipes and falls on to the hanging gratel The other pipes 10 of the hanging grate are preferably connected to the under side of the steam generating chamber' 15, although if-preferred, all o'f the pipes of the hanging grate may be connected to the water chamber13 and in case the side hoppers 30 are not employed, all of these pipes may be connected to the bottom of the steam generating chamber 15. We

mass ve also find from practical experience, that considerable dry material is brought to theincinerator, which does not need to be placed. upon the hanging grate, but which can be 'fed directly to the lower gratev 6 and used with an inclined. bottom plate 38 and with a door 39 opposite the opening 37. By opening the door material in the bottom of the hopper 36 may be pushed through th opening 37 on to the lower grate 6.

The upper end of the hopper 36 is preferably on a level with the tops of the other hoppers and this hopper is preferably pro vided with a door or cover 40. lVeightcd valves ll are preferably arranged in the hopper 36 and these valves are arranged to open automatically under the weight of the material in the hopper 36, to permit said material to pass into the lower part of the hopper. These valves prevent any back firing in the hopper F or the purpose of assisting in the combustion of the material upon the hanging grate and of the material that falls from the hanging grate on to the lower grate 6, we prefer to provide one or more auxiliary grates located above or in front of the front part of said grate 6. We have shown in the drawings two,arrangemcnts of this auxiliary grate. In Fig. 1 we provide a down draft grate l2, preferably formed of pipes connected to the water circulating system and inclosed bythe wall l3 and the front wall of the combustion chamber. A door .44 is provided, by means of which, fuel may be placed upon the grate 42. As here shown, this auxiliary grate is within the combustion chamber and directly over the front part of the grate 6, so that there is from the grate 6 an upwardly extending flame and from the grate 42 a downwardly extending flame. These oppositely extend iiig flames secure practically perfect combilstion and produce a very hot lire, which assists very materially 1n consuming the bustion chamber are cc;

are inclosedwithin a chamber 48, having preferably a suitable door 49 and a valve opening 50 in the top, through which fuel may be supplied to the upper grate and which may be used for admission of air. We prefer, however, in this instance, to proride a iluefil, extending fronr the lower part of the main combustion chamber, under and back hf the grates 4-6 and 47, so that the air will be led from the lower part 5 of the main combustion chamber to the space above the down draft grate 47. In

3 we have shown two of these auxiliary grates, one located on each side of the front hopper. We also prefer to provide 3 an auxiliary furnace, consisting of an upper or down draft grate in connection with the over head grate 15'', which, as before I stated, is designed especially for consuming the carcasses of dead animals. As here shown, there is an opening in the wall of the combustion chamber, just below the over head grate 15'. A furnace casing 52 is provided in connection with this opening and within itis the lower grate and the upper down draft grate 54. A door is provided in the end of the casing 52 for feeding fuel to-thcse grates. When the device, is in use the flames, and products of combastion from the fires on these two grates pass through the opening in the wall of the combustion chamber and into the combustion chamber just below the over head grate l5 and thereby serve to consume the material supported upon said grate 15. e also prefer to provide a gas consuming chamber which is between the main combustion chamber of the incinerator and the main staclr or chimney 57. As hef'e-w shown, this combustion chamber is provided with the baffles 58 and 59,'the baffle 58 preferably extending downward from the top wall and the batlle 59 preferably extending upward from the lower wall and we also provide a vertical flue 60 at the rear end of the gas consuming chamber, which is divided by a partition 61, extending nearly to the lower end of said flue. The connection between the yertical flue and the stack or cl'iimneyis preferably made at the point 62, which is at the upper part of. said vertical flue. in the lower part of the vertical line, we preferably provide a suitable water pan 63 and we also prefer to provide in a suitable casing 64 connected to the lower part of said vertical flue, the auxiliary lip-draft and downdraft grates 65 and 436. These grates act in the manner already described for the other auxiliary grates and the flames from the fuel upon these two grates meeting the unconsumed gases at the bottom of the-vertical fine 60, aid in consuming such gases and hence all of the gases that pass rom the main com- ,ed either in the v i v 1",,

I grate,

gas consuming chamber 29 or in the lower part of the vertical flue 60; v In Fig. 4, we have showna modification of the hanging grate. As here shown, a part of the aims 10 are extended downward andu award and have their lower ends connecta to the water chamber 13, and in this instance, we prefer to provide acurved arch 67 of suitable material. supported upon the water circulating pipe 68 above the lower grate t3 and below the open space between the )ipcs 1O forming the hanging With this modified construction, the material on the hanging grate, as it falls through the open space between the parts of the grate, rests upon. the upper surfa e of said. arch, whercit is highly heated and it gradually falls off the edge of thisarch, or it may be pushed oil by the stokcr, who has inserted his stoking tool-- through one of the doors in the sides of the combustion chamber.

It will be seen that with this construction, we secure a very rapid and economical. incineration of all kinds of refuse or garbage material. Ordinarily material is fed directly into the combustion chamber and held for a time while being dried and then consumed upon the hanging grate. A. por tion of it falls through the space between the two parts of the grate into the lower or main grate, Very wet material is first placed in one of the side hoppers where the water is drained off of it in the manner already described] Dry, inflammable material, such as paper, etc, is fed through the front hopper and is used for starting or feeding the fire upon the lower grate. The bodies of dead' animals, instead oi being thrown directly onto the -firc of the main combustion chamber, as has been the curtom prior to our invention, are dropped into the over head grate where they are consumed by the flames from the main combastion chamber augmented by those from the auxiliary furnace, located in the rear and below said over head grate. The prodnets of combustion pass from the main combustion chamber into the consuming chamber and are held therein by means of the battles until practically all consumed and any residue thereof will be completely consumed by encountering the flames from the auxiliaryfurnace located at the bottom of the vertical flue.

W'c do not limit ourselves to the details of construction, as the same may be varied in many particulars, without departing from our invention,

We claim as our invention 1. The combination, in an incinerator, with a main combustion chamber having a" grate, and an outlet flue for the products of combustion, a front hopper having a fine connection 'with the lower part and the passage leading from said of said main combustion chamber, andan auxiliar furnace locatedin the lower part of sai main combustion chamber and communicating with the passa e between said main combustion chamber an suidfront hopper. 1

L. The combination, in an incinerator,

"with a main combustion chamber having a' grate and an outlet fine, of a front hopper having a passage in its lower walls communicating with said main combustion chamber above its grate, said front hopper haw? ing a grate therein on a level substantially with the grate in said main combustion chamber for feeding material as fuel onto the grate of the main combustion chamber, and an auxiliary furnace arranged in said main combustion chamber above its rate ront hopper to produce a downdraft at such point, substantially as "desrtzribed.

3. The combination, in an incinerator, with a main combustion chamber havin a grate and an outlet opening, and a filling opening located above said outlet opening, of a grate arranged below said outlet Opening, and an auxiliaryturnace located at one side of said main combustion chamber and communicating with the upper portion thereof and with said outlctopcning.

i. The ctunbination, in an incinerator, with a combustion chamber having a. suspended grate composed of vertically depending pipes, the lower portions being. downwardly and inwardly inclined, at descending flue and a stack communicating with a portion thereof, ot a gas consuming chamber leading from said combustion chamber to said descending line, a downwardly inclined ballle wall arranged to 105 deflect the products of combustion in said gas consuming chamber, and a second baflie wall upwardly inclined and arranged 'to deflect the products of combustion passin from said gas consuming chamber toward said descending flue. 5. The con'ibination, with. a main combustion chamber having alower grate and a hanging or basket grate above said lower grate, o]; a front hopper having a passage in its lower walls comnmnicating with the spur etween the grates in said main combustlon chamber, saidfront hopper also having a tucl support on a level substantially with the lower grate in said main combustion chamber'to feed fuel onto the grate of the main combustion chamber, and an auxiliary furnace located at one side of said main combustion chamber above its lower grate and said passage to produce a down-draft at such point, said auxiliary furnace having a grate and a filling opening, substantially as described.

6. The combination, with a main combustion chamber having a grate and a top fillcombustion chamber and having upper and lower grates, and. a space between them communicating with said combustion chamber and with said. outlet opening beneath .the grate therein.

In an incinerator, the combination, with a combustion chamber having a fire grate and an outlet flue, of an upper'suspended grate having a feed opening above the middle portion of said fire grate, a side hopper having a top filling opening and inclined bottom and communicating with the upper portion of said combustion chamber above said suspended grate through an opening in the wall of said chamber, a door for said opening, a casing inclosing the lower portion of said hopper and spaced therefrom, and the bottom and'lower side walls of said hopper having perforations therein communicating with said casing,

and a drain pipe for said casing.

S. In an incinerator, the combination, with a combustion chamber and a fire grate,

of a suspended grate arranged above said fire grate and having a feed opening above the middle portion of said fire grate, a hopper having a filling opening and a cover therefor and an inclined bottom, the wall of said hopper having an opening therein through which the material is directed by said inclined bottom, a door for said opening, the lower walls of said hopper having perforations therein, a casing inclosing said lower walls and spaced therefrom and having a drip pipe and an evaporating pan located in the bottom of said combustion chamber beneath said fire grate and whereto the liquid is directed through said drip pipe, substantially as described.

In witness whereof, we have hereunto set ourhands this 21st day of August 1909.

FELIX LOUIS DECARIE. LOUIS A. R. DEC'ARIE. ALEXANDER S. DECARlE.

Witnesses:

A. C. PAUL, J. M. SULLIVAN 

